Technically I did not say the civil rights movement was a bad thing (and as a whole I do not think it was) so that's you jumping to conclusions. But consider the following:

How many white lies can you tell before people start mistrusting you? It might help you in the short term but will destroy your credibility and trust in the long term. "So what if we lied?" Is not a good maxim to follow if you are fighting for justice. Case in point: growing present day disapproval of the civil rights movement. It always comes down to the same factor that erodes everything that is built on lies: The question of "What else was I lied to about?" You might have a very 'ends justify the means' perspective right now, but that is only because you agree with the end goal. If the shoe is on the other foot, people tend to cry foul very quickly. And even if you don't: plenty of other will. And they will try their hardest to tear down everything that's been built on the foundation of lies. Long term it is in nobody's interest to tell white lies. To be moral one has to be principled and transparent. Only then is social consensus stable. If not, it is just a matter of time before it is deconstructed.

Nobody is saying that though. And it's true: the civil rights movement was not as squeaky clean as most people believe. Rosa Parks protest was pre-planned. She was selected for it BC she had a clean past.